What should I do about my neighbors?

I've raised my daughter as a Christian, she's 10 now. One of her friends lives across the street and her parent are witches and wizards, or whatever you call those people. I don't feel comfortable with my daughter spending the night there, she is too curious, and has an impressionable mind. I've tried talking to their family about Jesus, but they don't seem too interested. Currently my daughter Madison isn't allowed over there without me. What should I do to make her lose interest in going over there? I've tried incorporating extra Bible time after dinner. Any other good ideas?